Abstract
The constrained application protocol (CoAP) can be used for remotely controlling various sensor devices in Internet of Things (IoT) networks. In CoAP, to support the handover of a mobile sensor device, service discovery and message transmission needs to be repeated, although doing so would increase the handover delay significantly. To address this limitation of CoAP, a centralized CoAP scheme has been proposed. However, it tends to result in performance degradation for an inter-domain handover case. In this letter, we propose a distributed CoAP handover scheme to support the inter-domain handover. In the proposed scheme, a distributed mobility agent (DMA) is used for managing the location of mobile sensors in a domain and performing handover control operations with its neighboring DMAs in a distributed manner. A performance comparison reveals that the proposed scheme offers a performance improvement of up to 29.5% in terms of the handover delay.
Original language | English |
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Pages (from-to) | 37-42 |
Number of pages | 6 |
Journal | Journal of Information and Communication Convergence Engineering |
Volume | 15 |
Issue number | 1 |
DOIs | |
State | Published - 1 Mar 2017 |
Keywords
- CoAP
- Distributed mobility agent
- Handover
- Internet of Things
- Mobile sensor